org.apache.hadoop.fs.s3
Class MigrationTool

java.lang.Object
  org.apache.hadoop.util.ToolBase
      org.apache.hadoop.fs.s3.MigrationTool

All Implemented Interfaces:

Configurable, Tool

public class MigrationTool
extends ToolBase

This class is a tool for migrating data from an older to a newer version of an S3 filesystem.

All files in the filesystem are migrated by re-writing the block metadata - no datafiles are touched.

Field Summary

Fields inherited from class org.apache.hadoop.util.ToolBase

conf

Constructor Summary

MigrationTool()

Method Summary

void	initialize(URI uri, Configuration conf)
static void	main(String[] args)
int	run(String[] args) execute the command with the given arguments

Methods inherited from class org.apache.hadoop.util.ToolBase

doMain, getConf, setConf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MigrationTool

public MigrationTool()

Method Detail

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

run

public int run(String[] args)
        throws Exception

Description copied from interface: Tool

execute the command with the given arguments

Parameters:

args - command specific arguments

Returns:

exit code

Throws:

Exception

initialize

public void initialize(URI uri,
                       Configuration conf)
                throws IOException

Throws:

IOException